The Davis Cos.

The developer of a 138-unit luxury condominium tower in Boston’s South End says presales activity has been strong ahead of its scheduled completion this fall.

The Davis Cos. partnered with the Boston Chinese Evangelical Church and Chinese Consolidated Benevolent Association on the 100 Shawmut condo development, which held a topping-off ceremony Tuesday.

Designed by The Architectural Team of Chelsea with Suffolk as construction manager, 100 Shawmut redeveloped and expanded a 6-story office building into a 13-story, 232,000-square-foot condo tower. The building will feature high-end finishes designed by Embarq Studio and a 13th floor indoor-outdoor lounge.

Advisors Living is the project’s sales agent. Other members of the project team include Copley Wolff Design Group, Howard Stein Hudson Associates, McNamara Salvia and WSP. Construction lenders include M&T Bank, Berkshire Bank, HarborOne Bank, Needham Bank and Bank of New England.

The project complied with Boston’s inclusionary development policy by designating BCEC and CCBA as recipient of its affordable housing contribution. The organizations are planning to develop 536 apartments and condos on neighboring parcels, including 26 percent dedicated for affordable housing.